Baumgarten's Enlightenment Aesthetica provides an important philosophical analogon to Deleuze's alignment of the ‘logic of sense’ and the ‘logic of sensation’. By linking serious reason with its ‘other’, frivolous feeling, the book greatly influenced Herder and the Romantic movement. Baumgarten called aesthetics ‘logic's younger sister’. Like Deleuze he propagates nothing less than the ‘becoming-girl’ of philosophy.